Renormalons and the Top Quark Mass Measurement
Paolo Nason
TL;DR
This paper discusses how infrared renormalons affect the perturbative series in top quark mass measurements, highlighting the theoretical ambiguities involved.
Contribution
It analyzes the impact of infrared renormalons on the perturbative expansion in top mass determination, providing insights into associated ambiguities.
Findings
Infrared renormalons introduce ambiguities in the perturbative series.
Power-suppressed ambiguities are significant in top mass measurements.
The work clarifies the theoretical limitations in extracting the top quark mass.
Abstract
I illustrate a recent work on the large-order behaviour of the perturbative expansion (and the related power-suppressed ambiguities) arising from infrared renormalons, in the context of top mass measurements in open-top production processes.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · High-Energy Particle Collisions Research